Isolation in Cloud Computing and Privacy-Enhancing Technologies - Suitability of Privacy-Enhancing Technologies for Separating Data Usage in Business Processes

Sustainability of Cloud Computing is assured for the uncritical services only. There is basically no company that entrusts critical data to a Cloud. Cloud Computing does not realize its potentials as far a cost reduction in IT is concerned. The reason is the lack of isolation. Isolation can be seen as a special sort of privacy, where the a service should not get in contact with other services, and the provider of the Cloud should not know what data are used in the service and for what purpose the service is used by the customer.